Include missing root directory files in wp_dash_exceptions
Include missing root directory files in wp_dash_exceptions

Example: Patching `package.json` via `grunt patch:31337` fails with the following error:

```
Result:
can't find file to patch at input line 5
Perhaps you used the wrong -p or --strip option?
The text leading up to this was:
--------------------------
|Index: package.json
|===================================================================
|--- package.json	(revision 31464)
|+++ package.json	(working copy)
--------------------------
File to patch: 
Skip this patch? [y] 
Skipping patch.
1 out of 1 hunk ignored```
aaronjorbin/grunt-patch-wordpress